Intrinsic relative magnetoconductivity of nonmagnetic metals

被引：49
作者：
Gao, Yang [1 ]
Yang, Shengyuan A. [2 ]
Niu, Qian [1 ,3 ]
机构：
[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA
[2] Singapore Univ Technol & Design, Res Lab Quantum Mat, Singapore 487372, Singapore
[3] Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China
来源：
PHYSICAL REVIEW B | 2017年 / 95卷 / 16期
关键词：
NEGATIVE MAGNETORESISTANCE; SEMIMETAL; CD3AS2; PHASE;
D O I：
10.1103/PhysRevB.95.165135
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a theory of magnetoconductivity for general three-dimensional nonmagnetic metals within the Berry-curvature-corrected semiclassical and Boltzmann framework. We find a contribution, which is intrinsic in the sense that its ratio to the zero-magnetic-field conductivity is fully determined by the intrinsic band properties, independent of the transport relaxation time, showing a clear violation of Kohler's rule. Remarkably, this contribution can generally be positive for the longitudinal configuration, providing a mechanism for the appearance of positive longitudinal magnetoconductivity besides the chiral anomaly effect.
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页数：7
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